<!DOCTYPE html>
<title>Don't crash for blocky &lt;br> (etc) with inline-size containment</title>
<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#contain-property">
<link rel="help" href="https://crbug.com/1313444">
<br style="container-type:inline-size; display:block;">
<wbr style="container-type:inline-size; display:block;">
